/* ===== Demo Block — after Hero section ===== */

.demo-section {
  padding: 6rem 0;
  background-color: hsl(var(--background));
  position: relative;
}

.demo-section .demo-container {
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 640px) {
  .demo-section .demo-container { padding: 0 1.5rem; }
}
@media (min-width: 1024px) {
  .demo-section .demo-container { padding: 0 2rem; }
}

/* — Section header — */
.demo-section .demo-header {
  text-align: center;
  margin-bottom: 4rem;
}

.demo-section .demo-header .demo-tag {
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: hsl(var(--muted-foreground));
  margin-bottom: 1rem;
  display: block;
}

.demo-section .demo-header h2 {
  font-family: var(--font-serif);
  font-size: 1.875rem;
  font-weight: 300;
  line-height: 1.25;
  margin: 0 0 1.5rem;
  color: hsl(var(--foreground));
}

@media (min-width: 640px) {
  .demo-section .demo-header h2 { font-size: 2.25rem; }
}
@media (min-width: 768px) {
  .demo-section .demo-header h2 { font-size: 3rem; }
}

.demo-section .demo-header h2 em {
  font-style: italic;
  font-weight: 300;
}

.demo-section .demo-header .demo-subtitle {
  color: hsl(var(--muted-foreground));
  max-width: 42rem;
  margin: 0 auto;
  line-height: 1.625;
  font-size: 0.875rem;
}

/* — Two-column layout — */
.demo-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: start;
}

@media (min-width: 1024px) {
  .demo-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}

/* — Chat card (shared between live chat & demo windows) — */
.demo-chat-card {
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: 0.5625rem;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.demo-chat-card .chat-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid hsl(var(--border));
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.demo-chat-card .chat-header .chat-avatar {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 9999px;
  background: hsl(var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-family: var(--font-serif);
  font-size: 0.875rem;
  color: hsl(var(--foreground));
}

.demo-chat-card .chat-header .chat-title {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 400;
  color: hsl(var(--foreground));
  line-height: 1.25;
}

.demo-chat-card .chat-header .chat-label {
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: hsl(var(--muted-foreground));
  margin-left: auto;
  white-space: nowrap;
}

/* — Messages area — */
.demo-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  min-height: 320px;
  max-height: 420px;
  scroll-behavior: smooth;
}

.demo-msg {
  max-width: 85%;
  padding: 0.75rem 1rem;
  border-radius: 0.375rem;
  font-size: 0.875rem;
  line-height: 1.5;
  word-wrap: break-word;
  white-space: pre-wrap;
  opacity: 0;
  transform: translateY(8px);
  animation: demoMsgIn 0.35s ease forwards;
}

.demo-msg-instant {
  opacity: 1;
  transform: none;
  animation: none;
}

.demo-msg-user {
  align-self: flex-end;
  background: hsl(var(--foreground));
  color: hsl(var(--background));
}

.demo-msg-bot {
  align-self: flex-start;
  background: hsl(var(--muted));
  color: hsl(var(--foreground));
}

.demo-msg-bot .demo-msg-photo {
  max-height: 10rem;
  border-radius: 0.25rem;
  margin-bottom: 0.5rem;
  display: block;
}

/* — Typing indicator — */
.demo-typing {
  align-self: flex-start;
  display: inline-flex;
  gap: 4px;
  padding: 0.75rem 1rem;
  background: hsl(var(--muted));
  border-radius: 0.375rem;
}

.demo-typing span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: hsl(var(--muted-foreground));
  animation: typingDot 1.2s ease-in-out infinite;
}

.demo-typing span:nth-child(2) { animation-delay: 0.15s; }
.demo-typing span:nth-child(3) { animation-delay: 0.3s; }

@keyframes typingDot {
  0%, 60%, 100% { opacity: 0.3; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-3px); }
}

@keyframes demoMsgIn {
  to { opacity: 1; transform: translateY(0); }
}

/* — Live chat input area — */
.live-chat-input-area {
  border-top: 1px solid hsl(var(--border));
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: hsl(var(--card));
}

.live-chat-input-area input[type="text"] {
  flex: 1;
  height: 2.25rem;
  border: 1px solid hsl(var(--input));
  border-radius: 0.375rem;
  padding: 0 0.75rem;
  font-size: 0.875rem;
  background: hsl(var(--background));
  color: hsl(var(--foreground));
  outline: none;
  font-family: var(--font-sans);
}

.live-chat-input-area input[type="text"]::placeholder {
  color: hsl(var(--muted-foreground));
}

.live-chat-input-area input[type="text"]:focus {
  border-color: hsl(var(--ring));
  box-shadow: 0 0 0 2px hsl(var(--ring) / 0.15);
}

.live-chat-btn {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.375rem;
  border: 1px solid transparent;
  background: transparent;
  color: hsl(var(--foreground));
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.15s;
}

.live-chat-btn:hover {
  background: hsl(var(--accent));
}

.live-chat-btn:disabled {
  opacity: 0.4;
  cursor: default;
  pointer-events: none;
}

.live-chat-btn svg {
  width: 1rem;
  height: 1rem;
}

.live-chat-send-btn {
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  border: 1px solid hsl(var(--primary));
}

.live-chat-send-btn:hover {
  opacity: 0.9;
}

/* — Image preview — */
.live-chat-previews {
  display: flex;
  gap: 0.5rem;
  padding: 0.5rem 1rem 0;
  flex-wrap: wrap;
}

.live-chat-previews .preview-thumb {
  position: relative;
  height: 3.5rem;
}

.live-chat-previews .preview-thumb img {
  height: 3.5rem;
  width: auto;
  border-radius: 0.25rem;
  border: 1px solid hsl(var(--border));
  display: block;
}

.live-chat-previews .preview-thumb .remove-thumb {
  position: absolute;
  top: -0.375rem;
  right: -0.375rem;
  width: 1.125rem;
  height: 1.125rem;
  border-radius: 9999px;
  background: hsl(var(--destructive));
  color: hsl(var(--destructive-foreground));
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.625rem;
  line-height: 1;
}

/* hidden file input */
.live-chat-file-input {
  display: none;
}

/* user message images */
.demo-msg-user-img {
  max-height: 10rem;
  border-radius: 0.25rem;
  margin-bottom: 0.5rem;
  display: block;
  border: 1px solid hsl(var(--background) / 0.2);
}

/* — Demo window extras — */
.demo-windows-col {
  display: flex;
  flex-direction: row;
  gap: 1rem;
}

.demo-windows-col > .demo-chat-card {
  flex: 1;
  min-width: 0;
}

.demo-windows-col > .demo-chat-card .demo-messages {
  min-height: 300px;
  max-height: 360px;
}

.demo-windows-col > .demo-chat-card .demo-msg-user-img {
  max-height: 11.5rem;
}

.demo-chat-card .demo-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.6875rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.25rem 0.625rem;
  border-radius: 9999px;
  background: hsl(var(--accent));
  color: hsl(var(--muted-foreground));
  margin-left: auto;
  white-space: nowrap;
}

.demo-badge .pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: hsl(var(--chart-3));
  animation: pulseDot 2s ease-in-out infinite;
}

@keyframes pulseDot {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

.demo-restart-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.6875rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.25rem 0.625rem;
  border-radius: 9999px;
  border: 1px solid hsl(var(--border));
  background: transparent;
  color: hsl(var(--muted-foreground));
  cursor: pointer;
  margin-left: auto;
  white-space: nowrap;
  transition: background 0.15s;
}

.demo-restart-btn:hover {
  background: hsl(var(--accent));
}

/* — Section fade-in animation — */
.demo-section {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.demo-section.demo-visible {
  opacity: 1;
  transform: translateY(0);
}

/* — Loading spinner — */
.demo-spinner {
  width: 1rem;
  height: 1rem;
  border: 2px solid hsl(var(--muted-foreground) / 0.3);
  border-top-color: hsl(var(--muted-foreground));
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  align-self: flex-start;
  margin: 0.25rem 0;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* — Mobile optimization for side-by-side demo cards — */
.demo-section {
  overflow-x: hidden;
}

.demo-windows-col {
  overflow: hidden;
}

@media (max-width: 767px) {
  .demo-windows-col .demo-chat-card .chat-header {
    padding: 0.5rem 0.5rem;
    gap: 0.375rem;
  }
  .demo-windows-col .demo-chat-card .chat-header .chat-avatar {
    width: 1.5rem;
    height: 1.5rem;
    font-size: 0.625rem;
  }
  .demo-windows-col .demo-chat-card .chat-header .chat-title {
    font-size: 0.625rem;
  }
  .demo-windows-col .demo-chat-card .demo-badge {
    font-size: 0.5rem;
    padding: 0.125rem 0.375rem;
    letter-spacing: 0.05em;
  }
  .demo-windows-col .demo-chat-card .demo-messages {
    padding: 0.5rem;
    gap: 0.375rem;
    min-height: 200px;
    max-height: 200px;
  }
  .demo-windows-col .demo-chat-card .demo-msg {
    padding: 0.375rem 0.5rem;
    font-size: 0.5rem;
    max-width: 92%;
  }
  .demo-windows-col .demo-chat-card .demo-msg-photo,
  .demo-windows-col .demo-chat-card .demo-msg-user-img {
    max-height: 5rem;
  }
  .demo-windows-col .demo-chat-card .demo-restart-btn {
    font-size: 0.5rem;
    padding: 0.125rem 0.375rem;
  }
}

@media (max-width: 767px) {
  /* — Global mobile scroll fix — */
  html, body {
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
  }

  /* — Kill ALL Framer Motion inline animations on mobile — */
  section [style],
  section div[style],
  section h1[style],
  section h2[style],
  section p[style],
  section span[style],
  section img[style],
  section button[style] {
    opacity: 1 !important;
    transform: none !important;
    animation: none !important;
  }

  /* — Kill all CSS transitions inside sections (prevents layout shifts) — */
  section,
  section * {
    transition-duration: 0s !important;
    animation-duration: 0s !important;
  }

  /* — Kill backdrop-blur on navbar (heavy on Mobile Safari) — */
  nav {
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
    background-color: hsl(var(--background)) !important;
  }

  /* — Kill scale/transform transitions on all images — */
  section img {
    transition: none !important;
    transform: none !important;
  }

  /* — Disable smooth scroll globally on mobile — */
  html {
    scroll-behavior: auto !important;
  }

  /* — Hero: use stable viewport height (iOS address bar) — */
  #hero {
    min-height: 100vh !important;
    min-height: 100dvh !important;
  }

  /* — Demo section — */
  .demo-section {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .demo-msg {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
  .demo-messages {
    scroll-behavior: auto;
  }
}

/* — Left column label — */
.live-chat-label {
  margin-bottom: 1rem;
}

.live-chat-label .label-tag {
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: hsl(var(--muted-foreground));
  margin-bottom: 0.25rem;
}

.live-chat-label .label-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: hsl(var(--foreground));
  font-weight: 400;
}

/* Right column label */
.demo-col-label {
  margin-bottom: 1rem;
}

.demo-col-label .label-tag {
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: hsl(var(--muted-foreground));
  margin-bottom: 0.25rem;
}

.demo-col-label .label-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: hsl(var(--foreground));
  font-weight: 400;
}

/* — Responsive: smaller demo windows on mobile — */
@media (max-width: 1023px) {
  .demo-messages {
    min-height: 260px;
    max-height: 340px;
  }
}